THERMOELECTRIC-DRIVEN AUTONOMOUS SENSORS FOR A BIOMASS POWER PLANT. A. Rodríguez, D. Astrain, A. Martínez, E. Gubía, F.J. Sorbet
|
|
- Lindsay Edwards
- 5 years ago
- Views:
Transcription
1 THERMOELECTRIC-DRIVEN AUTONOMOUS SENSORS FOR A BIOMASS POWER PLANT A. Rodríguez, D. Astrain, A. Martínez, E. Gubía, F.J. Sorbet Mechanical, Energy and Materials Engineering Department Public University of Navarre, Pamplona, Spain Tel: Fax: , antonio.rodriguez@unavarra.es Abstract This work presents the design and development of a thermoelectric generator intended to harness waste heat in a biomass power plant, and generate electric power to operate sensors and the required electronics for wireless communication. The first objective of the paper is to design the optimum thermoelectric generator to harness heat from a hot surface, and generate electric power to operate a flowmeter and a wireless transmitter. The process is conducted by using a computational model, presented in previous papers, to determine the final design that meets the requirements of electric power consumption and number of transmissions per minute. Finally, the thermoelectric generator is simulated to evaluate its performance. The final device transmits information every five seconds. Moreover, it is completely autonomous and can be easily installed, since no electric wires are required. Keywords: Thermoelectric generation, waste heat, autonomous sensor, thermal Resistance 1. Introduction Mankind has been utilizing renewable energy sources (including solar, wind and water) since ancient times until the arrival of the industrial revolution, when, due to low
2 oil prices, they were virtually abandoned. In recent years, rising prices of fossil fuels and environmental problems of nuclear power plants are boosting a revival of renewable energy. Along with that, a new mentality on energy management is arising, focused on efficiency, sustainability and the promotion of decentralized energy production. Although energy production mainly involves high power generation (MW), there are also research lines on low power generation (kw and W). Proofs of this fact are all the small appliances and electronics not connected to the electric grid, such as mobile phones, audio devices, radios, etc., which require batteries to operate. The problems concerning these batteries have much to do with their limited life and the use of certain chemicals proven harmful to the environment. The application of thermoelectric technology to these devices is increasing in importance, so that conventional batteries are been replaced for small, cheap and efficient thermoelectric generators. As an example, one of the pioneering applications of this technology dates back to the eighties [1] and involved the use of heat emitted by the human body to power a wristwatch using thermoelectric technology. The biggest drawback was the excessive hardness and brittleness of this device, typical of semiconductor materials. This disadvantage seems to be solved now with the inclusion of thin-film thermoelectric generators, more flexible and compact. Other applications use solar energy [2] or heat produced in the decomposition of small amounts of radioactive isotopes [3]. This work studies and develops a thermoelectric generator to harness waste heat in a biomass power plant, specifically hot surfaces at temperatures below 150 ºC, and generate electric power to operate sensors and the required electronics for wireless communication. Waste heat is a permanent source of wasted energy not used in any subsequent process.
3 The thermoelectric generator is composed of several modules ENERKIT SC [4], arranged thermally in parallel and connected electrically in series, which harness heat from a heat source attached to them, transform part of it into electric power, and emit the rest to the environment through a finned dissipator. In this paper, finned dissipators with natural convection are used. A mathematical model that simulates the operation of a thermoelectric generator, developed by our research group [5-7], is used as a design and optimization tool along this work. This computational model includes the effect of the heat exchangers, which allows us to consider the complex interactions between heat flows. Moreover, it considers the influence of the electrical load resistance, so we can determine the currentvoltage curves provided by the thermoelectric generator. These curves allow us to develop the required electronics for the thermoelectric modules, so that they work at matched load resistance and provide the maximum electric power. 2. Hot points and sensors in the biomass power plant First of all, it is necessary to survey the thermodynamic cycle of the biomass power plant in order to know all the hot potential points where it might be interesting to install the thermoelectric generators. Only after analyzing both the surface and the available temperature at every point, one can provide the optimal locations for application. The plant presents 25 MW of installed power, working around 8000 hours per year with biomass (straw) consumption of 160,000 tons per year.
4 Inside the power plant Turbine Feedwater heaters Pump Chimney Smoke filter Boiler Degasser Condenser Figure 1 Scheme of the biomass power plant Figure 1 shows a schematic view of the steam cycle. This is typical a Rankine cycle that converts heat energy from the combustion of biomass into work. The Rankine cycle uses water as working fluid. The energy supplied by the combustion produces watervapor in a high-pressure boiler. Then, the vapor is expanded in the turbine to generate mechanical work. After that, the low-pressure steam from the turbine goes through a heat exchanger where it becomes liquid after transferring heat to a cooling stream from a nearby river. Subsequently, a pump increases the pressure of the fluid and guides it back into the boiler, thus closing the cycle. Apart from these basic components, there exists auxiliary equipment that increases the efficiency of the installation, such as preheaters, degassers, etc. For proper operation, the plant also uses a large number of sensors (pressure, temperature, flow, ph,...) that require electric power to operate, supplied by batteries or the electric grid through wires. Our design of thermoelectric generator intends to remove both the batteries and the wires.
5 The most important factors when selecting a hot point are the accessibility, the hot temperature and the environment temperature. Moreover, the installation of the thermoelectric device must not affect the normal operation of the plant. After analyzing both the Rankine cycle of the power plant and all the sensors, we concluded that the most interesting hot points to install thermoelectric generators are the following four: Smoke Filter: Exhaust gas at 140 C from the combustion boiler enters the filter, which removes the solid particles, before going up the chimney. Chimney: At the top of the chimney, exhaust gas is at 140 C. Ignition air flow: Close to the boiler, this air heats a surface at 100 C. Degasser: This component can be found just before the pump that leads to the boiler. The fluid inside is at about 185 C, so that the attaching surface is at around 150 C. Table 1 shows approximate values of the maximum electric power produced by the generator (W TEG ) at different hot points of the plant (final results from Table 3). Then, the heat flow transferred from the hot point to the generator is provided by Eq. (1), where the efficiency (ε ) is considered to be around of 3%, usual value for this kind of thermoelectric generators [8-10]. = (1) Then, Eq. (2) provides the temperature drop in the corresponding fluid (steam, air or exhaust gas) due to the heat transferred to the thermoelectric generator, being the mass flow (m ) and specific heat (cp) of the different fluids indicated in Table 1. = (2)
6 Smoke filter Chimney Ignition air flow Degasser [W] 1,8 1,8 1,2 2 [W] ,7 [kg/s] [J/kgK] 1002,4 1002,4 1002,4 4181,3 [K] 1,6 10 1,6 10 1, Table 1 Temperature drop of the working fluid, T, for different configurations In all the cases, the mass flow rate of the fluid is high enough not to be influenced by the thermoelectric generator, so that the temperature of each hot point can be considered constant. The environment temperature inside the power plant ranges from 20 ºC in winter to 40 ºC in summer; outside, it ranges from 0 to 30 ºC. Measurement equipment and sensors currently used in the power plant, and suitable to be connected to the thermoelectric generator, are the following: Flowmeter FV4000 and transmitter 10VR1311 AK45A32 A1A, ABB (combined load resistance of 650 Ω) TH02-Temperature Transmitter with Pt100 V , ABB (combined load resistance of 600 Ω) ph Transmitter PH402G/U of Yokogawa (combined load resistance of 550 Ω) In Fig. 2, one can see the possible integration of the thermoelectric generator on the surface of the chimney and the degasser.
7 CHIMNEY PELTIER MODULES SENSOR TEG DISSIPATOR DEGASSER Figure 2. TEG localization in different components of the plant 3. Computational method and methodology The objective of this section is to determine the influence of the dissipator thermal resistance and the number of modules on the electric power produced by the thermoelectric generator, in order to select the optimal configuration. Simulations provide the cited influence, which will lead to the construction of different prototypes in subsequent papers. The load resistance connected to the thermoelectric modules has also strong influence on the electric power generated. Maximum power is achieved at half the opencircuit voltage, which occurs when the load resistance is equal to the internal resistance of the modules. The simulations consider load resistances from 0 to 1000 Ω Computational model The computational model developed by our research group [5-7] requires as input parameters the temperatures of the hot point and the environment (hot and cold reservoirs), as well as the thermal resistances and thermal capacities of the components
8 of the thermoelectric generator. No other experimental temperatures are required. Then, the model determines all the heat flows and temperatures of these components, as well as the efficiency, voltage, electric current and electric power generated. The model solves the non-linear set of equations composed of the Fourier's law and the thermoelectric effects, namely Seebeck, Peltier, Joule and Thomson, all of them temperature-dependant, using the finite differences method. This method requires the reduction of the whole system into a mesh of representative nodes, each one connected to the surrounding nodes by thermal resistances. Likewise, each node has a thermal capacity that sets the variation rate of its temperature. This method replaces the threedimensional Fourier s Law with the corresponding implicit finite-differences expression, provided by Eq. (3), which must be applied to all the nodes of the system [5-7]. # $%&'( ) $ * $%&,$ +, - '( ) $. / * $%&,$ + / * $,$0& 1+12 # $0&'( ) $ * $,$0& = + 3 $'( ) $ (3) The discretization of the thermoelectric generator uses symbols of an electric analogy, as can be seen in Fig. 3. The hot reservoir, the cold reservoir and the dissipator are represented by a single node each, whereas the thermoelectric modules require a series of nodes to obtain accurate results. The thermal resistances between connected nodes (R,5/ ) and the thermal capacities (C ) are input parameters of the model, both of them depending on the geometry and the thermal properties of the components, which points out that the model is a tool for design and optimization. The computational model calculates temperatures for instant of time (τ), updates the corresponding thermal resistances, thermal capacities and heat flows, and finally calculates temperatures for instant of time (τ+δτ). Every step represents a real state of
9 the system, which points out that the model is capable of simulate both steady and transitory states. It should be noted that the model is deterministic, since no randomness is included in the input parameters. Figure 3 Scheme of the thermal-electric analogy of the computational model. All the input parameters can be easily modified, thus allowing the simulation of a huge variety of cases. The input parameters are classified into the following groups: thermoelectric module design (materials and geometry), thermal resistance of the
10 dissipator, electrical load resistance, temperatures at the cold and hot reservoir, and number of modules. The output variables are: temperature of each node, heat flows produced by the thermoelectric effects and transferred between nodes, voltage, electric current and electric power generated, all of them provided as functions of time Simulation results a. Influence of the thermal resistance of the dissipator Figure 4 shows the influence of this thermal resistance (R d ) and the load resistance (R l ) on the electric power generated by 4 thermoelectric modules (each one presents an electric internal resistance of 4 Ω and is composed of 127 pairs), given a temperature difference of 80 C between the hot and cold reservoirs. This temperature difference can be assumed constant as was demonstrated in Table 1. Power [W] Dissipator thermal resistance [K/W] Load resistance [Ω] Figure 4 Power generated as a function of the R d and R l This figure shows that the electric power drops dramatically when the thermal resistance of the dissipator increases a little bit. The same applies to the load resistance, with less significant influence, though. These simulations show that the electric power
11 increases as the load resistance approaches the internal resistance of the four modules connected in series, so that the voltage approaches half the open-circuit voltage, as explained before. In conclusion, for a thermal resistance of the dissipator above 1.5 K/W, the electric power is reduced by more than 75 % with respect to that obtained with the best thermal resistance (0.23 K/W), and the application is not feasible. The load resistance has also great influence on the electric power, but this is a design parameter imposed by the internal electrical resistance of the sensor and the corresponding transmitter. b. Influence of the number of thermoelectric modules Figure 5 shows the influence of the number of thermoelectric modules (from 1 to 4) on the electric power produced by the thermoelectric generator, given a temperature difference of 80 C between the hot and cold reservoirs. A finned dissipator with base area of is proposed. Computational-fluid-dynamics software Ansys-Fluent provides its thermal resistance as a function of the number of modules, being 0.92 K/W when only one module is installed. Many examples of this methodology are easily found in the literature [11]. Then, each module is considered to have its own 81x81 mm 2 dissipator with 0.92 K/W of thermal resistance. Therefore, if four modules were installed, the equivalent thermal resistance would be 0.23 K/W, as Fig. 6, on the right, points out.
12 Power [W] Number of modules Load resistance [Ω] 50 Figure 5 Power generated as a function of the number of modules and R l, (R d = 0.23K/W). The electric power rises with the increasing number of modules, which seems obvious since the temperature difference between the hot and cold reservoirs keeps constant. Likewise, the maximum power is reached when the load resistance matches the internal resistance of the modules, which increases from 4 to 16 Ω as the number of modules increases from 1 to 4. Although installing a dissipator per module improves significantly the electric power generated, it also increases both the cost and the required space, which may be constricted inside the power plant. Then, a second option would be to install a single dissipator for all the modules, as can be seen in the central picture of Fig. 6. Again, a finned dissipator with base area of 81x81 mm 2 is proposed. A similar methodology to that used in the previous case [11] points out that the thermal resistance of the dissipator turns out to be 0.70 K/W when four modules are installed, which is significantly higher than that obtained for four modules and four dissipators (0.23 K/W) but slightly lower than that for one module and one dissipator (0.92 K/W). Two reasons explain this fact: On one hand, given a fixed dissipator, the thermal resistance per module increases as the number of modules increases, since the dissipation area per module also decreases. On
13 the other hand, as the number of modules increases, the effect of constriction on the heat transfer from the modules to the dissipator causes a reduction in the thermal resistance of the dissipator [12], since the modules cover almost all the base area of the dissipator and the heat flow is more evenly distributed along this surface. 1 module 1 dissipator 4 modules 1 dissipator 4 modules 4 dissipators Figure 6 Configurations proposed for the dissipator As a result, Fig. 7 indicates that the electric power still rises with the increasing number of modules but not as abruptly as it did in the case presented in Fig. 5. In that case, the maximum electric power of four modules reached 2.5 W, whereas it hardly reaches 1 W now. This fact makes evident the great importance of the thermal design and heat transfer management in thermoelectric generators. Power [W] Number of modules Load resistance [Ω] Figure 7 Power generated as a function of the number of modules and Rl, (Rd=0.7 K/W).
14 4. Selected case The proposed prototype of thermoelectric generator can include from 1 to 4 thermoelectric modules and a finned dissipator with base area of 81x81 mm 2. Its thermal resistance varies again from 0.70 to 0.92 K/W, depending on the number of modules. The selected sensor is a flowmeter Vortex FV4000 with its corresponding transmitter ELSELMA TXA15101E, presenting a combined load resistance of 650 Ω, which is quite high compared to the internal resistance of the modules. This is the reason why the electric power presented in Fig. 8 is an order of magnitude lower than the maximum presented in Figs. 5 and 7. Likewise, Table 2 shows the electric power for some specific temperature differences between the hot and cold reservoirs that can be found in the biomass power plant. Power [W] Disipador de 81x81mm2. Rcarga=650Ohm. 127 pares por módulo Number of modules Temperature gap between hot and cold reservoir [K] Figura 8 Power generated in the case selected (R l = 650Ω) The generated power ranges from 0.01 to 0.11 W, being not enough to supply the 3 W that the Vortex Flowmeter FV4000 and its transmitter require to provide continuous information. The proposed solution involves emitting discontinuous signals instead, so
15 that the electric power generated by the modules supplies continuously a rechargeable battery that is discharged from time to time to power the sensor. The energy required to emit one signal is 3 J and takes one second, so if the signal is sent only once every minute, 0.05 W of electric power is enough to store the cited 3 J in a battery between two subsequent emissions. As an example, Table 2 indicates that the power produced for 80 C of temperature difference between the hot and cold reservoir is W; then, a time period of 51 s is needed to store the 3 J required by the sensors and transmitters to emit one signal. Temperature gap between hot and cold [ºC] Number of modules Thermal resistance of dissipater [K/W] Power generated [W] ,92 0, ,7 0, Table 2 Simulations with the modules connected a R l = 650 Ω. In this application, the thermoelectric generator would be connected to a battery, which is assumed to have a similar load resistance than the sensor (650 Ω). One improvement would be to develop and install an electronic circuit between the modules and the battery that made the modules work at matched load. Figure 9 shows a schematic diagram of that electronic circuit, which would make the modules to feed the battery at maximum electric power.
16 Optimum point circuit Figure 9 Electronic circuit connecting the modules to the battery. Table 3 shows the simulations for a thermoelectric generator composed of 4 modules working in the optimum point (matched load of 16 Ω, when voltage is half the open-circuit voltage), with 0.70 K/W of thermal resistance of the dissipator, and the cited electronic circuit feeding a battery of 650 Ω. The thermoelectric generator, in this case, could be installed in any of the selected heat sources in the plant and would produce enough power to store the required energy to operate the sensors and transmitters in a few seconds. The degasser would be the hot point for which the signal could be emitted with higher frequency, specifically each 1.64 seconds, since this is the point with the highest temperature. Temperature gap between hot and cold [ºC] Thermal resistance of dissipater [K/W] Power [W] Time needed to generate 3J [s] 60 0,7 0, ,7 0, ,7 1, ,7 1, ,7 1, Table 3 Simulations with the modules connected a R l = 16 Ω.
17 5. Conclusions Several sources of waste heat in a biomass power plant have been examined to serve as heat sources for thermoelectric generators intended to supply electric power to autonomous and independent sensors. The most interesting are the chimney (127 C between the heat source and the environment), the smoke filter (127 C), the ignition air flow (70 C) and the degasser (140 C). In parallel, a thermoelectric generator has been designed and studied. This methodology includes Ansys-Fluent simulations to calculate the thermal resistance of the finned dissipator, which ranges from 0.70 to 0.92 K/W depending on the number of modules installed in the thermoelectric generator. Finally, a computational model has been used to assess the influence of various factors on the electric power generated. The first conclusion indicates that both the thermal resistance of the dissipator and the load resistance are the most influential factors, so that a little increase in any of them reduces dramatically the electric power produced by the thermoelectric generator. Secondly, an increasing number of modules always lead to an increase in the electric power. Finally, the best option is to use multiple modules per dissipator, thus reducing cost and eliminating the problems associated with space availability. The thermoelectric generator is not capable of feeding continuously a Vortex flowmeter FV4000 and its corresponding transmitter ELSELMA FV4000 TXA15101E, but the electric power could be stored in an intermediate battery that allows emitting a signal every minute. Finally, we have developed an electronic circuit that allows the generator to work at optimum power and increase the electric power supplied to the battery. Thanks to this electronic circuit, the time required to charge the battery and emit signals was reduced to less than 5 seconds.
18 Acknowledgments The authors are indebted to the Spanish Ministry of Science and Innovation (DPI ) and FEDER funds (European Union) for the economic support to this work References [1] Akai S., Takeda S., Onuma Y., Kobayashi M. (1985), Thermoelectric properties of deposited semiconductor films and their application, Electrical Engineering in Japan, v. 105, pp [2] Hara T., Azuma H., Shimizu H., Obora H., Sato S. (1998), Cooling performance of solar cell driven thermoelectric cooling prototype headgear, Applied Thermal Engineering, v. 18, pp [3] Lazarenko Y.V., Gusev V.V., Pustovalov A.A., Zhabin V.N. (1989), Pu238-based smallsize RTG for artificial heart systems and assisted blood circulation systems, Proceedings of the XXIV Intersociety Energy Conversion Engineering Conference, v. 6, pp [4] Accesed June, [5] Rodríguez A., Vián J.G., Astrain D., Martínez A. (2009) Study of thermoelectric systems applied to electric power generation., Energy Conversion and Management. 50/5, pp [6] Rodríguez A., Vián J.G., Astrain D. (2009) Development and experimental validation of a computational model in order to simulate ice cube production in a thermoelectric ice maker, Applied Thermal Engineering. 29, pp [7] D. Astrain, J. G. Vián, A. Martínez, A. Rodríguez. (2009) Study of the influence of heat exchangers thermal resistances on a thermoelectric generation system, Energy, 35, pp [8] Bell L.E. (2008), Cooling, heating, generating power, and recovering waste heat with thermoelectric systems, Science, v. 321, pp [9] Kajikawa T. (2006), Thermoelectric Power Generation System Recovering Industrial Waste Heat, en Rowe D.M. Thermoelectrics Handbook. Macro to Nano (1ª ed.), CRC Press, Boca Raton, pp [10] Rowe D.M. (2006), General Principles and Considerations, en Rowe D.M.,Thermoelectrics Handbook. Macro to Nano (1ª ed.), CRC Press, Boca Raton, pp [11] Astrain D. (2003), Increase of COP in the thermoelectric refrigeration by the optimization of heat dissipation, Applied Thermal Engineering. 23, 17 pp
19 [12] Yovanovich, M. M. Muzychka, Y. S. Culham, J. R. (1999), Spreading resistance of isoflux rectangles and strips on compound flux channels. Journal of Thermophysics and Heat Transfer, 13, pp Figure captions Fig. 1 Scheme of the biomass power plant Fig. 2 TEG localization in different components of the plant Fig. 3 Scheme of the thermal-electric analogy of the computational model. Fig. 4 Power generated as a function of the Rd and Rl Fig. 5 Power generated as a function of the number of modules and Rl, (Rd = 0.23K/W). Fig. 6 Configurations proposed for the dissipator Fig. 7 Power generated as a function of the number of modules and Rl, (Rd=0.7 K/W). Fig. 8 Power generated in the case selected (R l = 650Ω) Fig. 9 Electronic circuit connecting the modules to the battery Table captions Table 1 Temperature drop of the working fluid, T i, for different configurations Table 2 Simulations with the modules connected a Rl= 650 Ω. Table 3 Simulations with the modules connected a R l = 16 Ω.
Exhaust Waste Heat Recovery of I. C. Engine by Thermoelectric Generator
Exhaust Waste Heat Recovery of I. C. Engine by Thermoelectric Generator S. V. Chavan Department of Mechanical Engineering N. K. Orchid College of Engineering and Technology, Solapur, Maharashtra, India
More informationExperimental Study on the Effects of Flow Rate and Temperature on Thermoelectric Power Generation
PROCEEDINGS, 44th Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 11-13, 19 SGP-TR-214 Experimental Study on the Effects of Flow Rate and Temperature on
More informationNumerical Simulation of the Thermoelectric Model on Vehicle Turbocharged Diesel Engine Intercooler
Research Journal of Applied Sciences, Engineering and Technology 6(16): 3054-3059, 013 ISSN: 040-7459; e-issn: 040-7467 Maxwell Scientific Organization, 013 Submitted: January 1, 013 Accepted: January
More informationChapter 7: Thermal Study of Transmission Gearbox
Chapter 7: Thermal Study of Transmission Gearbox 7.1 Introduction The main objective of this chapter is to investigate the performance of automobile transmission gearbox under the influence of load, rotational
More informationCFD ANALYSIS ON LOUVERED FIN
CFD ANALYSIS ON LOUVERED FIN P.Prasad 1, L.S.V Prasad 2 1Student, M. Tech Thermal Engineering, Andhra University, Visakhapatnam, India 2Professor, Dept. of Mechanical Engineering, Andhra University, Visakhapatnam,
More informationTitle: Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Developed by Dr. HoSung Lee on 10/18/2014 Car seat comfort is becoming
Title: Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Developed by Dr. HoSung Lee on 10/18/2014 Car seat comfort is becoming more and more a competitive issue, moving optional
More informationDevelopment of the Micro Combustor
Development of the Micro Combustor TAKAHASHI Katsuyoshi : Advanced Technology Department, Research & Engineering Division, Aero-Engine & Space Operations KATO Soichiro : Doctor of Engineering, Heat & Fluid
More informationEFFICIENCY INCREASE IN SHIP'S PRIMAL ENERGY SYSTEM USING A MULTISTAGE COMPRESSION WITH INTERCOOLING
THERMAL SCIENCE, Year 2016, Vol. 20, No. 2, pp. 1399-1406 1399 EFFICIENCY INCREASE IN SHIP'S PRIMAL ENERGY SYSTEM USING A MULTISTAGE COMPRESSION WITH INTERCOOLING by Petar LANDEKA and Gojmir RADICA* Faculty
More informationInternational Journal of Engineering Research & Science (IJOER) ISSN: [ ] [Vol-3, Issue-12, December- 2017]
The Impact of Different Electric Connection Types in Thermoelectric Generator Modules on Power Abdullah Cem Ağaçayak 1, Süleyman Neşeli 2, Gökhan Yalçın 3, Hakan Terzioğlu 4 1,3,4 Vocational School of
More informationSolar Energy Harvesting using Hybrid Photovoltaic and Thermoelectric Generating System
Global Journal of Pure and Applied Mathematics. ISSN 0973-1768 Volume 13, Number 9 (2017), pp. 5935-5944 Research India Publications http://www.ripublication.com Solar Energy Harvesting using Hybrid Photovoltaic
More informationRemarkable CO 2 Reduction of the Fixed Point Fishing Plug-in Hybrid Boat
Journal of Asian Electric Vehicles, Volume 13, Number 1, June 215 Remarkable CO 2 Reduction of the Fixed Point Fishing Plug-in Hybrid Boat Shigeyuki Minami 1, Kazusumi Tsukuda 2, Kazuto Koizumi 3, and
More informationEnhance the Performance of Heat Exchanger with Twisted Tape Insert: A Review
Enhance the Performance of Heat Exchanger with Twisted Tape Insert: A Review M.J.Patel 1, K.S.Parmar 2, Umang R. Soni 3 1,2. M.E. Student, department of mechanical engineering, SPIT,Basna, Gujarat, India,
More informationDesign and Fabrication of Shell and Tube Type Heat Exchanger and Performance Analysis
Design and Fabrication of Shell and Tube Type Heat Exchanger and Performance Analysis Tanveer Raza 1, Marooph Patel 2. 1 Student, Mechanical Engineering Department, SKN, tanveer.raza23@gmail.com 2 Student,
More informationTHERMAL ANALYSIS OF PISTON BLOCK USING FINITE ELEMENT ANALYSIS
THERMAL ANALYSIS OF PISTON BLOCK USING FINITE ELEMENT ANALYSIS Pushpandra Kumar Patel 1, Vikky Kumhar 2 1 BE Student, 2 Assistant Professor Department of Mechanical Engineering, SSTC-SSGI, Junwani, Bhilai,
More informationAvailability Analysis For Optimizing A Vehicle A/C System
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2002 Availability Analysis For Optimizing A Vehicle A/C System Y. Zheng Visteon
More informationDESIGN AND ANALYSIS OF CAR RADIATOR BY FINITE ELEMENT METHOD
DESIGN AND ANALYSIS OF CAR RADIATOR BY FINITE ELEMENT METHOD Prof. V. C. Pathade 1, Sagar R. Satpute 2, Mayur G. Lajurkar 3, Gopal R. Pancheshwar 4 Tushar K. Karluke 5, Niranjan H. Singitvar 6 1 Assistant
More informationUsing energy storage for modeling a stand-alone wind turbine system
INTERNATIONAL JOURNAL OF ENERGY and ENVIRONMENT Volume, 27 Using energy storage for modeling a stand-alone wind turbine system Cornel Bit Abstract This paper presents the modeling in Matlab-Simulink of
More informationTheoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Theoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor
More informationENERGY STORAGE FOR A STAND-ALONE WIND ENERGY CONVERSION SYSTEM
ENERGY STORAGE FOR A STANDALONE WIND ENERGY CONVERSION SYSTEM LUMINIŢA BAROTE, CORNELIU MARINESCU, IOAN ŞERBAN Key words: Wind turbine, Permanent magnet synchronous generator, Variable speed, Standalone
More informationFinite Element Analysis on Thermal Effect of the Vehicle Engine
Proceedings of MUCEET2009 Malaysian Technical Universities Conference on Engineering and Technology June 20~22, 2009, MS Garden, Kuantan, Pahang, Malaysia Finite Element Analysis on Thermal Effect of the
More informationInternational Journal of Advance Engineering and Research Development WASTE HEAT UTILIZATION SYSTEM FOR AUTOMOBILES
Scientific Journal of Impact Factor (SJIF): 5.71 International Journal of Advance Engineering and Research Development Volume 5, Issue 06, June -2018 e-issn (O): 2348-4470 p-issn (P): 2348-6406 WASTE HEAT
More informationOriginal. M. Pang-Ngam 1, N. Soponpongpipat 1. Keywords: Optimum pipe diameter, Total cost, Engineering economic
Original On the Optimum Pipe Diameter of Water Pumping System by Using Engineering Economic Approach in Case of Being the Installer for Consuming Water M. Pang-Ngam 1, N. Soponpongpipat 1 Abstract The
More informationA FEASIBILITY STUDY ON WASTE HEAT RECOVERY IN AN IC ENGINE USING ELECTRO TURBO GENERATION
A FEASIBILITY STUDY ON WASTE HEAT RECOVERY IN AN IC ENGINE USING ELECTRO TURBO GENERATION S.N.Srinivasa Dhaya Prasad 1 N.Parameshwari 2 1 Assistant Professor, Department of Automobile Engg., SACS MAVMM
More informationCFD Investigation of Influence of Tube Bundle Cross-Section over Pressure Drop and Heat Transfer Rate
CFD Investigation of Influence of Tube Bundle Cross-Section over Pressure Drop and Heat Transfer Rate Sandeep M, U Sathishkumar Abstract In this paper, a study of different cross section bundle arrangements
More informationMulti Body Dynamic Analysis of Slider Crank Mechanism to Study the effect of Cylinder Offset
Multi Body Dynamic Analysis of Slider Crank Mechanism to Study the effect of Cylinder Offset Vikas Kumar Agarwal Deputy Manager Mahindra Two Wheelers Ltd. MIDC Chinchwad Pune 411019 India Abbreviations:
More informationEffect of Stator Shape on the Performance of Torque Converter
16 th International Conference on AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 May 26-28, 2015, E-Mail: asat@mtc.edu.eg Military Technical College, Kobry Elkobbah, Cairo, Egypt Tel : +(202) 24025292
More informationThe influence of thermal regime on gasoline direct injection engine performance and emissions
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS The influence of thermal regime on gasoline direct injection engine performance and emissions To cite this article: C I Leahu
More informationExhaust Gas Waste Heat Recovery and Utilization System in IC Engine
IJIRST International Journal for Innovative Research in Science & Technology Volume 1 Issue 11 April 2015 ISSN (online): 2349-6010 Exhaust Gas Waste Heat Recovery and Utilization System in IC Engine Alvin
More informationDynamic Modelling of Hybrid System for Efficient Power Transfer under Different Condition
RESEARCH ARTICLE OPEN ACCESS Dynamic Modelling of Hybrid System for Efficient Power Transfer under Different Condition Kiran Kumar Nagda, Prof. R. R. Joshi (Electrical Engineering department, Collage of
More informationLaboratory Exercise 12 THERMAL EFFICIENCY
Laboratory Exercise 12 THERMAL EFFICIENCY In part A of this experiment you will be calculating the actual efficiency of an engine and comparing the values to the Carnot efficiency (the maximum efficiency
More informationInternational Journal of Scientific & Engineering Research, Volume 5, Issue 7, July-2014 ISSN
ISSN 9-5518 970 College of Engineering Trivandrum Department of Mechanical Engineering arundanam@gmail.com, arjunjk91@gmail.com Abstract This paper investigates the performance of a shock tube with air
More informationEffects of Dilution Flow Balance and Double-wall Liner on NOx Emission in Aircraft Gas Turbine Engine Combustors
Effects of Dilution Flow Balance and Double-wall Liner on NOx Emission in Aircraft Gas Turbine Engine Combustors 9 HIDEKI MORIAI *1 Environmental regulations on aircraft, including NOx emissions, have
More informationEFFECT OF UNCONSTANT OVERALL HEAT TRANSFER COEFFICIENT ON THERMAL PERFORMANCES OF MULTIPLE ASSEMBLIES OF AUTOMOBILE RADIATORS
EFFECT OF UNCONSTANT OVERALL HEAT TRANSFER COEFFICIENT ON THERMAL PERFORMANCES OF MULTIPLE ASSEMBLIES OF AUTOMOBILE RADIATORS S. Vithayasai T.Kiatsiriroat Department of Mechanical Engineering, Chiang Mai
More informationME Thermoelectric -I (Design) Summer - II (2015) Project Report. Topic : Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort
ME 6950- Thermoelectric -I (Design) Summer - II (2015) Project Report Topic : Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Team Members WIN ID Karthik Reddy Peddireddy 781376840
More informationA Comprehensive Study on Speed Control of DC Motor with Field and Armature Control R.Soundara Rajan Dy. General Manager, Bharat Dynamics Limited
RESEARCH ARTICLE OPEN ACCESS A Comprehensive Study on Speed Control of DC Motor with Field and Armature Control R.Soundara Rajan Dy. General Manager, Bharat Dynamics Limited Abstract: The aim of this paper
More informationDevelopment of Motor-Assisted Hybrid Traction System
Development of -Assisted Hybrid Traction System 1 H. IHARA, H. KAKINUMA, I. SATO, T. INABA, K. ANADA, 2 M. MORIMOTO, Tetsuya ODA, S. KOBAYASHI, T. ONO, R. KARASAWA Hokkaido Railway Company, Sapporo, Japan
More informationPerformance of Low Power Wind-Driven Wound Rotor Induction Generators using Matlab
Research Article International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347-5161 2014 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Performance
More informationCFD Analysis and Comparison of Fluid Flow Through A Single Hole And Multi Hole Orifice Plate
CFD Analysis and Comparison of Fluid Flow Through A Single Hole And Multi Hole Orifice Plate Malatesh Barki. 1, Ganesha T. 2, Dr. M. C. Math³ 1, 2, 3, Department of Thermal Power Engineering 1, 2, 3 VTU
More informationUse of Flow Network Modeling for the Design of an Intricate Cooling Manifold
Use of Flow Network Modeling for the Design of an Intricate Cooling Manifold Neeta Verma Teradyne, Inc. 880 Fox Lane San Jose, CA 94086 neeta.verma@teradyne.com ABSTRACT The automatic test equipment designed
More informationDYNAMIC BEHAVIOUR OF SINGLE-PHASE INDUCTION GENERATORS DURING DISCONNECTION AND RECONNECTION TO THE GRID
DYNAMIC BEHAVIOUR OF SINGLE-PHASE INDUCTION GENERATORS DURING DISCONNECTION AND RECONNECTION TO THE GRID J.Ramachandran 1 G.A. Putrus 2 1 Faculty of Engineering and Computing, Coventry University, UK j.ramachandran@coventry.ac.uk
More informationA Research Oriented Study On Waste Heat Recovery System In An Ic Engine
International Journal of Engineering Inventions e-issn: 2278-7461, p-issn: 2319-6491 Volume 3, Issue 12 [December. 2014] PP: 72-76 A Research Oriented Study On Waste Heat Recovery System In An Ic Engine
More informationThe Heating Mode Of Cable Transformer With Cooling System
The Heating Mode Of Cable Transformer With Cooling System Titkov, V.V., Tukeev P.D. Department of High Voltage Engineering, Electrical Insulation and Cable Technology, Institute of Power Engineering and
More informationAnalysis on natural characteristics of four-stage main transmission system in three-engine helicopter
Article ID: 18558; Draft date: 2017-06-12 23:31 Analysis on natural characteristics of four-stage main transmission system in three-engine helicopter Yuan Chen 1, Ru-peng Zhu 2, Ye-ping Xiong 3, Guang-hu
More informationAdvance Electronic Load Controller for Micro Hydro Power Plant
Journal of Energy and Power Engineering 8 (2014) 1802-1810 D DAVID PUBLISHING Advance Electronic Load Controller for Micro Hydro Power Plant Dipesh Shrestha, Ankit Babu Rajbanshi, Kushal Shrestha and Indraman
More informationESS SIZING CONSIDERATIONS ACCORDING TO CONTROL STARTEGY
ESS SIZING CONSIDERATIONS ACCORDING TO CONTROL STARTEGY Ugis Sirmelis Riga Technical University, Latvia ugis.sirmelis@gmail.com Abstract. In this paper the sizing problem of supercapacitive mobile energy
More informationForced vibration frequency response for a permanent magnetic planetary gear
Forced vibration frequency response for a permanent magnetic planetary gear Xuejun Zhu 1, Xiuhong Hao 2, Minggui Qu 3 1 Hebei Provincial Key Laboratory of Parallel Robot and Mechatronic System, Yanshan
More informationChapter 27. Circuits
Chapter 27 Circuits 27.2: Pumping Charges: In order to produce a steady flow of charge through a resistor, one needs a charge pump, a device that by doing work on the charge carriers maintains a potential
More informationDesign of pneumatic proportional flow valve type 5/3
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Design of pneumatic proportional flow valve type 5/3 To cite this article: P A Laski et al 2017 IOP Conf. Ser.: Mater. Sci. Eng.
More informationThermal Analysis and Comparison of Heat Exchangers Attached to Thermoelectric Generator
Thermal Analysis and Comparison of Heat Exchangers Attached to Thermoelectric Generator Satish Eppar 1, Surendra Patil 2 P.G. Student, Department of Mechanical Engineering, Shri Shivaji College of Engineering
More informationNumerical Investigation of the Effect of Excess Air and Thermal Power Variation in a Liquid Fuelled Boiler
Proceedings of the World Congress on Momentum, Heat and Mass Transfer (MHMT 16) Prague, Czech Republic April 4 5, 2016 Paper No. CSP 105 DOI: 10.11159/csp16.105 Numerical Investigation of the Effect of
More informationElectric vehicles a one-size-fits-all solution for emission reduction from transportation?
EVS27 Barcelona, Spain, November 17-20, 2013 Electric vehicles a one-size-fits-all solution for emission reduction from transportation? Hajo Ribberink 1, Evgueniy Entchev 1 (corresponding author) Natural
More informationUsing ABAQUS in tire development process
Using ABAQUS in tire development process Jani K. Ojala Nokian Tyres plc., R&D/Tire Construction Abstract: Development of a new product is relatively challenging task, especially in tire business area.
More informationV&V Exercise for a Solar Tower Power Plant
University of New Mexico From the SelectedWorks of Nima Fathi Spring May 6, 2014 V&V Exercise for a Solar Tower Power Plant Nima Fathi, University of New Mexico Seyed Sobhan Aleyasin, University of Manitoba
More informationEnhancement of Transient Stability Using Fault Current Limiter and Thyristor Controlled Braking Resistor
> 57 < 1 Enhancement of Transient Stability Using Fault Current Limiter and Thyristor Controlled Braking Resistor Masaki Yagami, Non Member, IEEE, Junji Tamura, Senior Member, IEEE Abstract This paper
More informationAnalytic modeling of a high temperature thermoelectric module for wireless sensors
Analytic modeling of a high temperature thermoelectric module for wireless sensors J.E. Köhler, L.G.H. Staaf, A.E.C. Palmqvist and P. Enoksson Chalmers University of Technology, 412 96 Göteborg, Sweden
More informationHeat Transfer in Rectangular Duct with Inserts of Triangular Duct Plate Fin Array
Heat Transfer in Rectangular Duct with Inserts of Triangular Duct Plate Fin Array Deepak Kumar Gupta M. E. Scholar, Raipur Institute of Technology, Raipur (C.G.) Abstract: In compact plate fin heat exchanger
More informationSmall Oil Free Piston Type Compressor For CO2
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 Small Oil Free Piston Type Compressor For CO2 H. Baumann Baumann Engineering M. Conzett
More informationSPEED AND TORQUE CONTROL OF AN INDUCTION MOTOR WITH ANN BASED DTC
SPEED AND TORQUE CONTROL OF AN INDUCTION MOTOR WITH ANN BASED DTC Fatih Korkmaz Department of Electric-Electronic Engineering, Çankırı Karatekin University, Uluyazı Kampüsü, Çankırı, Turkey ABSTRACT Due
More informationAn analytical study on the performance characteristics of a multi-stage thermoelectric cooling system
Energy Production and Management in the 21st Century, Vol. 2 1237 An analytical study on the performance characteristics of a multi-stage thermoelectric cooling system D. Kim 1, C. Lim 1 & Y. Kim 2 1 Graduate
More informationThe Performance Optimization of Rolling Piston Compressors Based on CFD Simulation
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 The Performance Optimization of Rolling Piston Compressors Based on CFD Simulation
More informationBEHAVIOUR OF ELECTRIC FUSES IN AUTOMOTIVE SYSTEMS UNDER INTERMITTENT FAULT
BEHAVIOUR OF ELECTRIC FUSES IN AUTOMOTIVE SYSTEMS UNDER INTERMITTENT FAULT B. Dilecce, F. Muzio Centro Ricerche FIAT, Orbassano (Torino), Italy A. Canova, M. Tartaglia Dipartimento Ingegneria Elettrica
More informationA Comparative Analysis of Speed Control Techniques of Dc Motor Based on Thyristors
International Journal of Engineering and Technology Volume 6 No.7, July, 2016 A Comparative Analysis of Speed Control Techniques of Dc Motor Based on Thyristors Nwosu A.W 1 and Nwanoro, G. C 2 1 National
More informationTHERMOELECTRIC GENERATOR
INSTITUTE OF THERMOELECTRICITY.. UKRAINE THERMOELECTRIC GENERATOR Thermoelectric generator is intended for conversion of industrial waste heat, waste heat from heat engines (internal combustion engines,
More informationCOMPRESSIBLE FLOW ANALYSIS IN A CLUTCH PISTON CHAMBER
COMPRESSIBLE FLOW ANALYSIS IN A CLUTCH PISTON CHAMBER Masaru SHIMADA*, Hideharu YAMAMOTO* * Hardware System Development Department, R&D Division JATCO Ltd 7-1, Imaizumi, Fuji City, Shizuoka, 417-8585 Japan
More informationDesign of Active and Reactive Power Control of Grid Tied Photovoltaics
IJCTA, 9(39), 2016, pp. 187-195 International Science Press Closed Loop Control of Soft Switched Forward Converter Using Intelligent Controller 187 Design of Active and Reactive Power Control of Grid Tied
More informationDISTRIBUTED GENERATION FROM SMALL HYDRO PLANTS. A CASE STUDY OF THE IMPACTS ON THE POWER DISTRIBUTION NETWORK.
DISTRIBUTED GENERATION FROM SMALL HYDRO PLANTS. A CASE STUDY OF THE IMPACTS ON THE POWER DISTRIBUTION NETWORK. N. Lettas*, A. Dagoumas*, G. Papagiannis*, P. Dokopoulos*, A. Zafirakis**, S. Fachouridis**,
More informationChapter 8 Production of Power from Heat
Chapter 8 Production of Power from Heat Different sources of power, such as solar energy (from sun), kinetic energy from atmospheric winds and potential energy from tides. The most important source of
More informationResearch on the Structure of Linear Oscillation Motor and the Corresponding Applications on Piston Type Refrigeration Compressor
International Conference on Informatization in Education, Management and Business (IEMB 2015) Research on the Structure of Linear Oscillation Motor and the Corresponding Applications on Piston Type Refrigeration
More informationUniversity of Florida Low Cost Solar Driven Desalination
132 P a g e University of Florida Low Cost Solar Driven Desalination PI: James Klausner Students: Fadi Alnaimat/Ph.D. Mechanical Engineering Description: Water and energy scarcity poses a future threat
More informationJournal of Advanced Mechanical Design, Systems, and Manufacturing
Pneumatic Valve Operated by Multiplex Pneumatic Transmission * Yasutaka NISHIOKA **, Koichi SUZUMORI **, Takefumi KANDA ** and Shuichi WAKIMOTO ** **Department of Natural Science and Technology, Okayama
More informationDynamic Behaviour of Asynchronous Generator In Stand-Alone Mode Under Load Perturbation Using MATLAB/SIMULINK
International Journal Of Engineering Research And Development e-issn: 2278-067X, p-issn: 2278-800X, www.ijerd.com Volume 14, Issue 1 (January 2018), PP.59-63 Dynamic Behaviour of Asynchronous Generator
More informationEXPERIMENTAL INVESTIGATIONS OF DOUBLE PIPE HEAT EXCHANGER WITH TRIANGULAR BAFFLES
International Research Journal of Engineering and Technology (IRJET) e-issn: 2395-56 Volume: 3 Issue: 8 Aug-216 www.irjet.net p-issn: 2395-72 EXPERIMENTAL INVESTIGATIONS OF DOUBLE PIPE HEAT EXCHANGER WITH
More information51. Heat transfer characteristic analysis of negative pressure type EGR valve based on CFD
51. Heat transfer characteristic analysis of negative pressure type EGR valve based on CFD Guannan Hao 1, Sen Zhang 2, Yiguang Yin 3 Binzhou University, Binzhou, China 1 Corresponding author E-mail: 1
More informationThe Feasibility of a Current-Source Thermoelectric Power Generator and Its Corresponding Structure Design
Journal of ELECTRONIC MTERILS, Vol. 44, No. 6, 205 DOI:.7/s664-04-3602-7 Ó 205 The Minerals, Metals & Materials Society The Feasibility of a Current-Source Thermoelectric Power Generator and Its Corresponding
More informationTHEORETICAL ASSESSMENT OF A STIRLING ENGINE 'AMAZON' BY USING PROSA AND MATHCAD
THEORETICAL ASSESSMENT OF A STIRLING ENGINE 'AMAZON' BY USING PROSA AND MATHCAD R. B. Paula a, J. L. Goncalves b, V. R. M. Cobas c, and Electo E. S. Lora d Universidade Federal de Itajubá Instituto de
More informationParametric Study on Performance Characteristics of Wave Rotor Topped Gas Turbines
Parametric Study on Performance Characteristics of Wave Rotor Topped Gas Turbines Fatsis Antonios Mechanical Engineering Department Technological Education Institute of Sterea Ellada 34400 Psachna, Greece
More informationSizing of Ultracapacitors and Batteries for a High Performance Electric Vehicle
2012 IEEE International Electric Vehicle Conference (IEVC) Sizing of Ultracapacitors and Batteries for a High Performance Electric Vehicle Wilmar Martinez, Member National University Bogota, Colombia whmartinezm@unal.edu.co
More informationDesign of a Low Voltage DC Microgrid Based on Renewable Energy to be Applied in Communities where Grid Connection is not Available
3rd International Hybrid ower Systems Workshop Tenerife, Spain 8 9 May 8 Design of a Low Voltage DC Microgrid Based on Renewable Energy to be Applied in Communities where Grid Connection is not Available
More informationSalakhov R.R Salakhov Rishat Rizovich, Candidate of Technical Sciences, Director, Research Institute of Energy Efficient Technologies, KNRTU-KAI
International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 3, March 2017, pp. 467 475, Article ID: IJMET_08_03_051 Available online at http://www.iaeme.com/ijmet/issues.asp?jtype=ijmet&vtype=8&itype=3
More informationSTIFFNESS CHARACTERISTICS OF MAIN BEARINGS FOUNDATION OF MARINE ENGINE
Journal of KONES Powertrain and Transport, Vol. 23, No. 1 2016 STIFFNESS CHARACTERISTICS OF MAIN BEARINGS FOUNDATION OF MARINE ENGINE Lech Murawski Gdynia Maritime University, Faculty of Marine Engineering
More informationEVS25. Shenzhen, China, Nov 5-9, 2010
Page00053 EVS5 Shenzhen, China, Nov 5-9, 010 Application for Step-sewing of Rotor of IPM Motors Used in EV Hongliang Ying 1, Zhouyun Zhang 1, Jun Gong 1, Surong Huang, Xuanming Ding 1 1 Technique center
More informationInfluence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Influence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating
More informationWind Farm Evaluation and Control
International society of academic and industrial research www.isair.org IJARAS International Journal of Academic Research in Applied Science (2): 2-28, 202 ijaras.isair.org Wind Farm Evaluation and Control
More informationDC Arc-Free Circuit Breaker for Utility-Grid Battery Storage System
DC Arc-Free Circuit Breaker for Utility-Grid Battery Storage System Public Project Report Project RENE-005 University of Toronto 10 King s College Rd. Toronto, ON 2016 Shunt Current Mes. IGBTs MOV Short
More informationAutomation of Optimal Design of Air Preheater s Corrugated Heating Elements using CFD
Automation of Optimal Design of Air Preheater s Corrugated Heating Elements using CFD Mousumi Roy Former faculty, Department of Mechanical Engineering CVSR Engg. College, Hyderabad., Telangana state,india
More informationENGINE BATTERY SUPER CHARGING FROM EXHAUST GAS S.Pratheebha II M.E CAD/CAM Mechanical Department, Sengunthar College of Engineering,Tiruchengode
ENGINE BATTERY SUPER CHARGING FROM EXHAUST GAS S.Pratheebha II M.E CAD/CAM Mechanical Department, Sengunthar College of Engineering,Tiruchengode Abstract This paper deals with usage of Exhaust gas from
More informationA STUDY OF THE CENTRIFUGAL COMPRESSOR DISCHARGE PIPELINE CONSTRAINED OSCILLATION. KIRILL SOLODYANKIN*, JIŘÍ BĚHAL ČKD KOMPRESORY, a.s.
A STUDY OF THE CENTRIFUGAL COMPRESSOR DISCHARGE PIPELINE CONSTRAINED OSCILLATION KIRILL SOLODYANKIN*, JIŘÍ BĚHAL ČKD KOMPRESORY, a.s. Abstract: The paper presents a solution of a pipeline constrained oscillation
More informationENERGY RECOVERY SYSTEM FROM THE VEHICLE DAMPERS AND THE INFLUENCE OF THE TANK PRESSURE
The 3rd International Conference on Computational Mechanics and Virtual Engineering COMEC 2009 29 30 OCTOBER 2009, Brasov, Romania ENERGY RECOVERY SYSTEM FROM THE VEHICLE DAMPERS AND THE INFLUENCE OF THE
More informationApplication of Simulation-X R based Simulation Technique to Notch Shape Optimization for a Variable Swash Plate Type Piston Pump
Application of Simulation-X R based Simulation Technique to Notch Shape Optimization for a Variable Swash Plate Type Piston Pump Jun Ho Jang 1, Won Jee Chung 1, Dong Sun Lee 1 and Young Hwan Yoon 2 1 School
More informationFLOW AND HEAT TRANSFER ENHANCEMENT AROUND STAGGERED TUBES USING RECTANGULAR VORTEX GENERATORS
FLOW AND HEAT TRANSFER ENHANCEMENT AROUND STAGGERED TUBES USING RECTANGULAR VORTEX GENERATORS Prabowo, Melvin Emil S., Nanang R. and Rizki Anggiansyah Department of Mechanical Engineering, ITS Surabaya,
More informationModeling of Lead-Acid Battery Bank in the Energy Storage Systems
Modeling of Lead-Acid Battery Bank in the Energy Storage Systems Ahmad Darabi 1, Majid Hosseina 2, Hamid Gholami 3, Milad Khakzad 4 1,2,3,4 Electrical and Robotic Engineering Faculty of Shahrood University
More informationTurbostroje 2015 Návrh spojení vysokotlaké a nízkotlaké turbíny. Turbomachinery 2015, Design of HP and LP turbine connection
Turbostroje 2015 Turbostroje 2015 Návrh spojení vysokotlaké a nízkotlaké turbíny Turbomachinery 2015, Design of HP and LP turbine connection J. Hrabovský 1, J. Klíma 2, V. Prokop 3, M. Komárek 4 Abstract:
More informationIJESR/Oct 2012/ Volume-2/Issue-10/Article No-12/ ISSN International Journal of Engineering & Science Research
International Journal of Engineering & Science Research DESIGN AND CFD ANALYSIS OF U TUBE HEAT EXCHANGER P.B. Borade* 1, K.V.Mali 2 1 P.G. Student, Mechanical Department, Sinhgad College of Engineering,
More informationTHERMAL ANALYSIS OF DIESEL ENGINE PISTON USING 3-D FINITE ELEMENT METHOD
INTERNATIONAL JOURNAL OF MANUFACTURING TECHNOLOGY AND INDUSTRIAL ENGINEERING (IJMTIE) Vol. 2, No. 2, July-December 2011, pp. 97-102 THERMAL ANALYSIS OF DIESEL ENGINE PISTON USING 3-D FINITE ELEMENT METHOD
More informationOptimization of Three-stage Electromagnetic Coil Launcher
Sensors & Transducers 2014 by IFSA Publishing, S. L. http://www.sensorsportal.com Optimization of Three-stage Electromagnetic Coil Launcher 1 Yujiao Zhang, 1 Weinan Qin, 2 Junpeng Liao, 3 Jiangjun Ruan,
More informationEffect of Compressor Inlet Temperature on Cycle Performance for a Supercritical Carbon Dioxide Brayton Cycle
The 6th International Supercritical CO2 Power Cycles Symposium March 27-29, 2018, Pittsburgh, Pennsylvania Effect of Compressor Inlet Temperature on Cycle Performance for a Supercritical Carbon Dioxide
More informationExperimental Investigation of Thermoelectric Generator Modules With Different Technique of Cooling System
American Journal of Engineering and Applied Sciences, 6 (1): 1-7, 2013 ISSN: 1941-7020 2014 Jalil and Sampe, This open access article is distributed under a Creative Commons Attribution (CC-BY) 3.0 license
More information(by authors Jouko Niiranen, Slavomir Seman, Jari-Pekka Matsinen, Reijo Virtanen, and Antti Vilhunen)
Technical Paper: Low voltage ride-through testing of wind turbine converters at ABB helps wind turbines meet the requirements of IEC 61400-21 more quickly (by authors Jouko Niiranen, Slavomir Seman, Jari-Pekka
More informationCircumstances affecting the protection against electrode potential rise (EPR)
Ŕ periodica polytechnica Electrical Engineering 53/1-2 (2009) 79 83 doi: 10.3311/pp.ee.2009-1-2.10 web: http:// www.pp.bme.hu/ ee c Periodica Polytechnica 2009 Circumstances affecting the protection against
More informationThermo-Comfort Cushion & Back Car Seat
Thermo-Comfort Cushion & Back Car Seat Eduardo E. Castillo, Ph.D., Miguel Goenaga, Ph.D., Edwar Romero, Ph.D. Universidad del Turabo, Puerto Rico, ecastillo@suagm.edu, mgoenaga@suagm.edu, eromero6@suagm.edu
More information